
.main{
    height: calc(100% - 50px);
    height: -webkit-calc(100% - 50px);
    margin-top: 50px;
}


.list li{
    padding: 0 15px;
    height: 50px;
    display: flex;
    align-items: center;
    position: relative;

}
.list li:after{
    content: "";
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    border-bottom: 1px solid #ddd;
    -webkit-transform: scaleY(.5);
    -webkit-transform-origin: 0 0;
}